The best fit for you from the search list is the 12:40 train leaving cambridge on Tuesday to arrive stansted airport by 13:03.
That works, may I please have the reference number?
train-arriveby train-day train-departure train-destination train-leaveat
train-arriveby train-day train-departure train-destination train-leaveat
train-arriveby train-day train-departure train-destination train-leaveat
train-arriveby train-day train-departure train-destination train-leaveat